diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 13126ded84373bcbaa3ee75a114cb2a303caaf8e..9ec46239f92ec722cfbf32248fa3ab96616d3bf5 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -74,7 +74,7 @@ build:firefox:master:
         - shared/**
         - firefox/**
       when: always
-    - if: '$CI_COMMIT_MESSAGE =~ /#force-build/ && $CI_COMMIT_BRANCH == "master'
+    - if: '$CI_COMMIT_MESSAGE =~ /#force-build/ && $CI_COMMIT_BRANCH == "master"'
       when: always
     - when: never